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Cardiac, Thoracic & Vascular Surgeons

Cardiac and Thoracic Surgery Associates, P.C. is southern Colorado’s leading cardiac and thoracic surgery program performing more heart surgeries than any other hospital in southern Colorado.

What Defines Our Program

The skill and experience of our surgeons and the unique approach of our team is what defines our program and sets it apart from the rest. We approach each case with an individualized plan, and the surgical and technological tools that we believe will create the best outcome. We take the extra time to explain the options and proposed plan to the patient and family, and employ a full-time nurse to act as a resource for patients as they navigate the evaluation, operation and recovery process. Several experienced physician assistants also provide specialized care under the direction of our surgeons.

John Mehall, MD
Cardiovascular & Thoracic

Thomas Crepps, MD
Vascular Surgeon

Betty S. Kim, MD
Cardiothoracic Surgeon

Laura Kissell, MD, FACS
Vascular Surgeon

John R. Frederick, MD
Cardiothoracic Surgeon

Theolyn Price, MD
Thoracic Surgeon


Watch a video on why the most important factor in your surgical outcome is the relationship with your surgeon (2 min.).

Unmatched Outcomes and Transparent Reporting
Cardiac and Thoracic Surgery Associates, P.C. has achieved the highest possible ranking for outcomes and quality from The Society of Thoracic Surgeons. The cardiothoracic surgery program at Penrose-St. Francis ranks among the top 10% of programs for heart and chest surgery in the nation. We actively track our outcomes through participation in The Society of Thoracic Surgeons National Databases for both cardiac and thoracic surgery; we employ a full-time database manager, and we are the only program in southern Colorado that publicly reports our results online (

Consumer Reports Award

Cardiac and Thoracic Surgery Associates, P.C. has been ranked as a Top 50 Program for Coronary Bypass Surgery by Consumer Reports for two years in a row (2010, 2011).

We are proud to offer traditional open heart surgery with expertise in complex and re-operative surgery, the most active robotic and minimally invasive valve surgery program in the state, and comprehensive treatment of aortic disease using both open and endovascular approaches.

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